Bolt action firearm with charger



Dec. 7, 1965 w. H. B. sMl'rH BOLT ACTION FIREARM WITH CHARGER Original Filed April 5. 1956 mTrv Ilq'n United States Patent O 1 Claim. (Cl. 89-187) This application is a division of application Serial No. 576,275 led April 5, 1956, now Patent No. 2,894,346, issued July 14, 1959 and copending divisional application Serial No. 767,358 filed October l5, 1958, now Patent No. 3,090,148 issued May 2l, 1963.

This invention relates to firearms and more particularly relates to new and improved bolt holding means for use in a variety of firearms.

Small caliber semiautomatic rifles heretofore available have generally utilized actions which are either relatively expensive to produce or, being inexpensive, are equipped with inadequate safety features and are subject to frequent stoppages and jamming. A large number of springs are normally utilized requiring additional parts, seats or holding devices for retaining the spring action and this adds to manufacturing and tooling costs. While certain of these disadvantages may have been remedied at least partially in some prior mechanisms, to my knowledge there has been no simple low cost firing mechanism which eliminated them all.

According to my invention, as shown in FIGURE 16 of the parent application Serial No. 576,275 filed April 5, 1956 now Patent 2,894,346 issued July 14, 1959, my copending divisional application Serial No. 767,358 filed October l5, 1958, and in this application, my invention provides a novel and improved bolt holding means which may be readily disassembled in order to remove worn parts therefrom and replace them if needed. The receiver is so constructed to receive the bolt holding mechanism in such a manner that the bolt holding mechanism may be easily removed for inspection and repair insuring against the possibility of sudden bolt holding failure resulting in bolt lock in the hold position.

It is accordingly a prim-ary object of the present invention to provide a simple, sturdy firing mechanism which may be manufactured at a relatively low cost.

It is another object of the invention to provide a simple and sturdy tiring mechanism utilizing a minimum of springs and other parts.

It is a further object of this invention to provide a new and improved bolt holding means which may be readily disassembled.

These and further objects and advantages of the invention will become more apparent upon reference to the following specification and claim and appended drawings wherein:

FIGURE 1 is a vertical elevation, partly in section, showing a rifle action constructed according to the invention;

FIGURE 2 is a vertical section of the -bolt holding button;

The invention is herein described as applied to a semiautomatic rilie, although it will be clear that it is equally adaptable to use in other types of arms, such as semiautomatic pistols, and that certain features of the nvention are adaptable to manually operated rides and shotguns.

Referring to FIGURE .1i a rie action shown generally at is comprised of a receiver 12, bolt 14, breech plug 16, and barrel collar 18. Attached to the bottom of the 3,221,604 Patented Dec. 7, 1965 TCC receiver is a magazine housing 26 and a trigger plate 20 housing the trigger 22 and hammer 24. A charger 28 is slidably received in a longitudinal groove 30 in the receiver, and is held in position by means of a charger cover 32 which is attached to the side of the receiver by means of screws 34.

A bolt holding device is provided for holding the bolt in a retracted position and this is shown in detail in FIG- URE 2. Referring to that ligure there is shown an enlarged view of the side of the receiver 12 and bolt 14. The receiver is provided with a threaded aperture 184 which is in alignment with a hole 182 in the `bolt when the bolt is in a retracted position. This aperture 184 receives the threaded lower end 188 of a hollow bolt hold housing 186 which carries a bolt hold button 190. The shank 192 of bolt hold button 190 passes through a constricted portion 194 of the bolt hold button housing and has a bolt hold retaining ring 196 adjacent the constricted portion to prevent removal of the bolt hold button. A spring 198 surrounds the shank 192 of bolt hold lbutton and urges the button away from the bolt 14. When the bolt is retracted and the button 190 depressed, its shank 192 enters bore 182 in the bolt and holds the bolt in a retracted position. To release the bolt the charger handle is pressed to the rear to allow bolt hold button 190 to spring to its outward position and the bolt 4then snaps forward under the action of bolt springs 44.

As illustrated in the drawing, by providing the receiver 12 with a threaded aperture 184 for receiving the threaded lower end 188 of the hollow bolt hold housing 186 the assembly may be easily dismantled in order to inspect and/ or replace the spring 198 and the retaining ring 196, thus increasing the life of the bolt holding mechanism.

The invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof, the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claim rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claim are therefore intended to 4be embraced therein.

What is claimed and desired to be secured by United States Letters Patent is:

A gun action comprising a receiver having a breech plug at the rear thereof, said receiver having a threaded aperture for receiving a threaded hollow bolt hold housing member, a bolt slidably mounted in said receiver for movement between a forward and retracted position, said bolt being provided with a bolt holding recess formed in the outer surface thereof whereby said threaded aperture and said recess are in alignment when said bolt is in a retracted position within said receiver, spring means extending between said plug and said bolt urging said bolt forward, a hollow bolt hold housing member threaded at its lower end, said lower end of said bolt hold housing member being threaded into said threaded aperture in said receiver, means in said bolt hold housing member insertable through said threaded aperture and into said aligned recess for holding said bolt in retracted position providedA with a retaining ring for abutting against the shoulder of a constricted portion of said hollow bolt hold housing member to prevent the removal of said insertable means from said receiver, and spring means urging said insertable means away from said recess.

References Cited by the Examiner UNITED STATES PATENTS 2,882,634 4/ 1959 Smith 42-.16

BENJAMIN A. BORCHELT, Primary Examiner. 

